open Lwt
open Views
module Blog_post = Database.Blog_post
module type SimpleRender = (sig val render : unit -> string end)
let header_template =
{eos|
rawley.xyz
|eos}
let footer_template =
{eos|
|eos}
let replace_sequence r t s =
Str.(global_replace (regexp r) t s)
let html_unescape s =
s
|> replace_sequence "‘" "'"
|> replace_sequence "’" "'"
|> replace_sequence ">" ">"
|> replace_sequence "<" "<"
let not_found_template =
Printf.sprintf "%s %s %s"
header_template
"
|eos}
p.slug p.title p.date
let generate_rss_item (p : Blog_post.t) =
Printf.sprintf
{eos|%s
https://rawley.xyz/blog/%s
|eos}
p.title p.slug
let handle_error e =
print_endline (Caqti_error.show e);
Dream.html ?code:(Some 500) error_template
let handle_not_found () =
Dream.html ?code:(Some 404) not_found_template
let render_blog_index () =
let%lwt posts = Database.get_all_blog_posts () in
match posts with
| Error e -> handle_error e
| Ok posts -> Blog_index.render ~posts |> Layout.render |> Dream.html
let render_rss_feed (_ : Dream.request) =
let buff = Buffer.create 512 in
let add_str = Buffer.add_string buff in
let () =
add_str
{eos|
rawley.xyz blogFunctional programming, math, and philosophyhttps://rawley.xyz/static/rawley.xyz.png
https://rawley.xyz/
|eos}
in
let posts_t = Database.get_all_blog_posts () in
posts_t >>= function
| Error e -> handle_error e
| Ok posts ->
let () = List.iter (fun t -> generate_rss_item t
|> html_unescape
|> add_str) posts
in
let () =
add_str
{eos||eos}
in
Lwt.return @@
Dream.response
~headers:["Content-Type", "text/xml";]
(Buffer.contents buff)
let render_simple (module R : SimpleRender) =
R.render () |> Layout.render |> Dream.html
let render_blog_post ~slug =
let%lwt post = Database.get_blog_post_by_slug slug in
match post with
| Ok p_opt ->
begin match p_opt with
| None -> handle_not_found ()
| Some p ->
Dream.html @@ Post_layout.render ~title:p.title ~body:p.content ~tags:[p.title]
end
| Error e -> handle_error e
let render_index () =
render_simple (module Index)